Compare 2181 vs 2187
| Property | 2181 | 2187 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 1 |
| Total factors | 2 | 7 |
| Prime factorization | 31 × 7271 | 37 |
| Prime factorization | 3 × 727 | 3 × 3 × 3 × 3 × 3 × 3 × 3 |
| Divisors count | 4 | 8 |
| Divisors | 1, 3, 727, 2181 | 1, 3, 9, 27, 81, 243, 729, 2187 |
| Number of properties | 1 | 0 |
| Semiprimes | 623rd | |
| Roman numberals | MMCLXXXI | MMCLXXXVII |
| Base 2 | 1000100001012 | 1000100010112 |
| Base 3 | 22222103 | 100000003 |
| Base 4 | 2020114 | 2020234 |
| Base 5 | 322115 | 322225 |
| Base 6 | 140336 | 140436 |
| Base 7 | 62347 | 62437 |
| Base 8 | 42058 | 42138 |
| Base 9 | 28839 | 30009 |
| Base 10 | 218110 | 218710 |
| Base 11 | 170311 | 170911 |
| Base 12 | 131912 | 132312 |
| Base 13 | cba13 | cc313 |
| Base 14 | b1b14 | b2314 |
| Base 15 | 9a615 | 9ac15 |
| Base 16 | 88516 | 88b16 |